Adjustable HV PSU

[Cloud]

For a project I would need an adjustable high voltage PSU. Voltage range should be between 250V - 15kV and current is enough 1mA. What would be best approach. I was thinking of using flyback transformer but it would have to be custom made. Flyback transformers from CRTs would probably work but I want to include off the shelf parts in my designs.

[PartialDischarge]

Don't do this yourself. Fluke has the 410B up to 10kV, for higher output find adjustable modular power supplies from Spellman on ebay. They usually go for less than $300, I've got a 50kV model from them iirc.

[coromonadalix]

Some electrophoresis power supplies could help in some case,  but dont cover the full range you need

[coromonadalix]

https://www.ebay.com/itm/DC-High-Voltage-Power-Supply-digital-Meter-electrostatic-generator-Electrospun/142541237208?

Many models to choose ?

[Cloud]

I forgot to mention. This PSU will be inside a project and controlled by MCU. I was looking at applied kilovolts PSUs but they are a bit expensive

[PartialDischarge]

Spellman HV psu can be controlled with a 0-10V input, this one is the type, this seller will accept $300-$350 for it, I think I bought mine from him

https://www.ebay.com/itm/Spellman-X2287-HV-power-supply-model-PCM50P75X2287-ar/174258856744

[zrq]

Hi, when I'm looking around on the ebay for a HVPSU for Xray tubes, I got interested in the same model PCM50P75X2287. Would you mind sharing your experience with driving such Spellman OEM high voltage supply?

[PartialDischarge]

You just need to make a control box with a db25 connector, two potentiometers and a switch iirc, also a multimeter to show the proportional 0-10v

[zrq]

Thanks! Just a late note: some Spellman manuals can be found with google, just search the product family code (PCM in this case).

[Terry Bites]

I've used ignitor coils from failed gas boiler control PCBs- You can also get them new if you like.
Ebay abounds with mini HV modules and coils. Just add your own control loop.
Dont forget the bleeder.

[zrq]

I just received my Spellman and it turns out the customized (PCM50P75X2287) model has a different control interface from the usual PCM modules  . It has a DB25 connector rather than the 15 pin connector on the manual, but on the PCB, it's internally connected to the 15 pin footprint.
The wiring for the DB25 connector is:
mA Prog: 13
kV Prog: 6
mA Mon.: 10
kV Mon.: 4
Enable: 2
Interlock Out: 9
+10V :23, 24, 25
GND: 1, 5
Fault: NC
Something unknown: 13, 14

Also the local programming potentiometers are not installed, the logic of enable is inverted (grounding to inhibit) and it doesn't seems to have slow start.